ASA: "ERROR: Character '/' is not allowed"

[Anton Zvonarev]

Hi all, 

While I was configuring a service object at some point I realised that I made a mistake and wanted to remove it. 

object service TCP/8443
 service tcp destination eq 8443 

FW(config)# no object service TCP/8443
ERROR: Character '/' is not allowed

And now I can't delete it. 
Of course, the name was accepted with no problem when I originally configured it. 

Any idea how to remove it from the configuration? 

This is ASA5555 9.8.(4)12

Thanks

Regards,

Anton